// -*- coding: utf-8 -*-
//  Copyright (C) 2016 Yusuke Suzuki <utatane.tea@gmail.com>
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright
//      notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
//      documentation and/or other materials provided with the distribution.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
//  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
//  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
//  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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//  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
//  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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import { expect } from 'chai';
import esprima from 'esprima';
import { analyze } from '..';

describe('fallback option', function() {
    it('should raise an error when it encountered an unknown node if no fallback.', function() {
        const ast = esprima.parse(`
            var foo = 0;
        `);

        ast.body[0].declarations[0].init.type = 'NumericLiteral';

        expect(function() {
            analyze(ast, {fallback: 'none'});
        }).to.throw("Unknown node type NumericLiteral");
    });

    it('should not raise an error even if it encountered an unknown node when fallback is iteration.', function() {
        const ast = esprima.parse(`
            var foo = 0;
        `);

        ast.body[0].declarations[0].init.type = 'NumericLiteral';

        analyze(ast); // default is `fallback: 'iteration'`
        analyze(ast, {fallback: 'iteration'});
    });

    it('should not raise an error even if it encountered an unknown node when fallback is a function.', function() {
        const ast = esprima.parse(`
            var foo = 0;
        `);

        ast.body[0].declarations[0].init.type = 'NumericLiteral';

        analyze(ast, {fallback: node => Object.keys(node)});
    });
});

// vim: set sw=4 ts=4 et tw=80 :
